Brush making machine



Feb. 16, 1932.

J. .'1. .THAcfHER BRUSH MAKING MACHINE Filed Feb. l, 1926 2 Sheets-Sheet 1 lllllllf Arrow/vf? Feb. 16, 1932. l l 1 1 THACHER 1,845,209

BRUSH MAKING MACHINE Filed Feb. 1, 1926 2 sheets-sheet 2 p11 |l xl z V ll l Il l :III

illlllllllll 4 /Nyffymf Patented 1932 j l l `UNIfliEi) STATES JOHN .JQ or wE'rEnsI-IELD, come'rIcU'r, AssrGNon lro 'rimA FUILEB BRUSH confirm, orfnanrronn, coNNEcfrIcU'r, a ooaroanrioir or coNNEc'rIcU'r BnUsn Emma' neem Application led February My invention relates to the class of appaf ratus herein mentioned, and an object of my invention, ,among others, is the production of an apparatus of the kind mentioned that ,5 shall be particularly eiicient in operation.

One form of apparatus embodying my invention, and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the o accompanying drawings, in which- Figure 1 is a side view of an a paratus embodying my invention, with eed driving belts removed. i

Figure 2 is a top viewl of the same.

Figure 3 is a detail view of a portion of the apparatus illustrating a modified construction.

yFigure 4 is a view in cross section, scale enlarged, through a partially formed brush strip, on a plane denoted by the dotted line mechanism for supplying bristles and for de- 1 livering a core strip cf peculiar construction both at a point where theyare united and compressed within a'base strip that is intended for use in the making of brushes, such mechanism being shown in the accompany ing-drawings inwhich'jhe numeral. 5 de# notes abase that isadapted to be-placed uponl and secured to the bed 6 of my improved brush making machine. Thisl base comprisesV a portion of a bracket that also includes sides 7 rising from the base and adapted as supports for various shafts for feed belts 8-9,

all of which will be more specifically hereinf bfistles in the 1, 1928. `Serial No. 85,087.

for the purpose of delivering'sai'd bristles to the feed belts hereinbefore mentioned.

The feed' belts are arranged in sets, a lower set comprising the belts 8 and an upper set comprising the belts 9,. the co-operating belts ofthe sets each comprising a` pair of belts that are arran edto travel coeoperatively for `a portion 4o their lengths,- as .shown in Figure-1, and when maintained-improper tension they operate to carry the ,material from one end to the other of said .belts.vn In order to maintain a proper position of these belts I mountone set of 'them`,vas\th'e belts 9,

on a suitable support', which supportis tilr table. This tiltable supportmay be arranged in various ways, that herein shown having been found by me to produces'atisfactory re- 5 sults. In this construction the opposite ends of two `of the belts 9 pass \around pulleys 13v14 supported by shafts 1-16 at the opositeends of an evener 17 and the other two elts 9 are similarly arranged on similar-pulleys on similar shafts 15-16 at the opposite f ends of another evener 18, these eveners being pivotallyattached to the lower end smof evener supporting arms 19-20 secured at their upper ends toan evener supporting shaft 21 mounted in bearings at the upper portions of the side parts 7 of the bracket hereinbefore mentioned. This construction' provides for a `preliminary automatic adjustment of the upper, set of belts after which the eveners are secured against movement and especially during operation of the machine.V

VThe lower set of belts 8 is supported at one end on mounted in bearings on the side arts 7 of the bracket. The opposite ends o these belts are supported by pulleys 2 4 mountedon stud shafts 25 secured to and projecting from shaft, supporting arms 26 projecting upwardly pulleys 22 secured to a shaft 23 op v from ashaft 27 which shaft is supported by 'and rigidly secured to the side arts 7 ofthe- Abracket hereinbefore'mentione i' The arms 26 are adjustably attached to the-'shaft 27 so fixed tocause theupper reaches'of these belts 8- on opposite sides of andadjacent to the wheel 10 to cross; .the pathof movemen of notches 11, whereby said bristles are yforced from said notches to be received on the belts 8 and by them carried between the two sets of belts 8 and 9, from which they arp delivered at the opposite en ds of the e ts.

- The mechanism thusfar described embodyf ing my invention may be operated in lany suitable manner, as by means of a connection with. a gear 28 secured to the shaft 23. .Feed driving belts 29 extend from .pulleys on the shaft '23 to pulleys'on the shafts 16to drive the belts 9 and the belts 8 are driven by pulleys 22 secured to the shaft 23, the mechathe nism being so arranged that the belts 8 and 9 travel 'at' the same rate of speed. The disr' tributing wheel 10 may be driven in anysuitable manner, as" by a belt (not shown`) `secured to the shaft' of said disc'.

In that form of the apparatus shown in Figure 3 the means for removing the fibers or bristles from the notches 11 embodies a iiange 3Q on the pulley 24, which flange is so located in the path of movement of the bristles in said notches as to intercept said formed by yany suitable mechanism that may or may-notcomprise an'integral part of the machineherem illustrated. This base strip vis Vpreferably of indefinite length and has a I continuous movement underneath the delivery ends of the belts 8 9, the bristles being' placed substantially at their lengthwise centers across this base strip, -said strip and bristles thereafter movingl along together.

a supporting roller 32.

The base strip may rest within the groove of A core strip 33 extends from a pair o/ core `forming rolls 34--35 around a guide disc 36 that has a groove 37 in its periphery to receive the core strip 33. The disc 36 is located with its periphery within the groove in the base strip 31, said disc guiding the core strip into said groove overlying the bristles 12, and, in

fact, crowding the bristles at their jcenters* down into the groove in the base strip, as illustrated in Figures 4 and 5 of the-drawings, and whereby the outer ends of each of the bristles are raised and closed toward each other.

This core strip is of peculiar .shape rel sembling somewhat the form of a dumb-bell when viewed in section, this shape being for a .specific purpose, and as specifically set forth l 1n mv copending application filed on even date .herewith otSerial Number'85,086 for y patent on Brush Structures, a feature of the present invention being the formation of this core strip whichis accomplished by ure 7 of the drawings.

ment except when loosened for the base strip.

means 'f the forming fous :a4-35 bereinigefore referred to. The roll 34 is formed with a peripheralgroove, the bottom of which is shaped to 'form one side of thecore strip and the roll 35 has .a peripheral rib 38, the edge of whichis formed to produce the other side of the core strip, and as'illustrated in Fig- The rod 39 from which the core strip 1s formed is passed, as from a reel, between the rolls 34-35 which impart to it the form shown in Figures 4 and 5, the core strip then vpassing around the guide disc 36 in engagement with which it may be held as by means of a guard 40 extending or a portion of the distance about the periphery ofthe disc and to Va point adjacent to that at which the core strip makes contact with the bristles, and as illustrated in Figure 6. 4

The rolls 34-35 are mounted on studs 41 attached to a plate 42 secured to a bracket 43 supported by and extending from the shaft 21, and as shownin Figure 2 of the drawings, A retaining plate 44 holds the rolls in place and the studs 41 each have an eccentric portion 45 and an angularly shaped head 46, one of which is tted to an opening in an adjusting lever 47, and the other member being free to turn in lan opening in plate 48 secured to the plate 44. The lever 47 is pivotally attached to a threaded bearing A49 having an adjusting screw 50, said screw being rotatably mounted in a bearing 51 secured to the plate 48. A hand wheel 52 at the' outer'end of the screw serves as a means ICI] for turning the same whereby the lever 47 is swung to adjust the position of the roll 35 with respect to the roll 34, through the operation of the eccentric 45. The other stud 41 may be adjusted as by means of'a Wrench applied to the angularly shaped head. Clamp screws 53 are provided as a means for retaining they studs against turning movepurposes of adjustment.

After the base strip with the core strip and bristles tucked therein have passed underneath the guide disc 36,',they are delivered between compressing rolls 54 rotatably mounted upon a pedestal 55,-the peripheries of these rolls being shaped asl shown in Figure 5 to impart the proper-formation to the base strip, the core strip and the bristles, whereby the sides of the base strip are compressed to tightly squeeze the bristles and core strip and secure them in In order to maintain the core strip and `bristles close against the bottomof the groove in the base strip until the action of the compressing rolls 54 has secured the parts together, a retaining foot 56 secured at itsupper end to an extension 57 from the bracket 43 projects underneath the disc 36, and as shown'in Figure' of the drawings, the toe place within p 58 extending underneath the disc encounter the core-strip and bristles while they are passing underneath the disc, and the heel 59 encountering said parts as near as mayv be to the point of ippin between the rolls 54, but without sa1d heel ing subjected to any pressure between the rolls. This mechanism enables the bristles and core strip to be positioned in the bottom of the groove in the base stri-pfuntil the action of the rolls 5% secures the parts tightly together and in p ace- The support for the guide disc 36 `comrises a bar mounted in bearings in the racket 57 the weight of said bar and o'f the bracket aiding in compressing the bristles and core strip into the groove in the base strip 31, and this pressure of the bar 60 mayv be re lated as by means of pressure screws `61 a xed to the upper ends of lthe side parts 7 of the brackets hereinbefore referred to.

It will be understood that the compressing rolls 45 are driven by means of powerapplied at` the lower ends'of their shafts by mechanism (not shown) by means of which the base strip, core strip and bristles are passed through the machine.

In accordance with the provisions of the patent statutes I have described the principles of operation. of my invention, together with the device which I now consider to represent, the best embodiment thereof, but I desire to have it understood that the device shown'is only illustrative and that the invention may be carried out by other means and applied touses other than those above set out.

I claimi v 1. A brush making machine including means for' supplying a ooved base strip, means for supplying brlstles to said strip, means for deliveringr a formed core wire into said base stripv overlyin said bristles, and means for compressing t e sides of said base strip to secure the bristles and core wire therein, said last named means engaging the p bottom and sides of the base strip, extending outwardly from. the open side edges of lthe strip and spaced from the-bristles. 2. A brush making machine including means for supplying a ooved basestrip,

means for supplying brlstles to said strip,l

means for forming and delivering a core wire into said basestrip overlying `said bristles, and means for. pressin the sides of said base.

between said base and core strip, and means for compressing the sides of said base strip to secure said core stripy and bristles therein,

said last named means engaging the bottom and sides of the base strip,- extending outwardly from the open side edges 'of thestrip and s aced from the bristles.

4. brush making machine including .means for suppllyxng a grooved base strip,

in the base strip, and means for pressing the sides of said base strip together adjacent to said retaining means to secure the core strip and bristles in the base strip.

5. A brush making machine including means for supplying a groovedA base strip, means for supplying bristles to said strip, a guide disc to enga and direct a core strip around one side o said guide disc and onto the bristles to press them .into the groove of said base strip, a pair of compression rolls to res's the sides of -said base strip together, andJ a retainin shoe located -between said guide disc an compression rolls to hold saidbristles" and core strip in the bottom of the groove in the base strip up to the time ofaction of said compression rolls.

6. A brush makin movably` V mounted 'stributer having .an opening for the reception of material, transmachine including a A ferring mechanism including belts operatively mounted on opposite sides of the distributer in the path of movement of material located in said opening, a disk rotatably mounted with its periphery assing between said belts, a air of core orming rolls to direct a-core or en agement with theedge of said disk, means or supplying a grooved base strip, and means for pressing brush material and the core into the groove. in said base strip.v 1

.I OHN J. TEACHER,

strip and said bristles into the grooves on the.

opposite sides of said core wire, .said last named means engaging the bottom and sides of the base strip, extending outwardly from the open side edgesof the strip and spaced from thevbristles. 3. A brush making machine including means for supplying a groovedbase strip, a pair of: coactlngcore strip .feeding rolls, means to receive said core strip to guide it to.

said base strip, means for delivering bristles I* las 

